For 60 degree triangles like those in the OBW quilt, I am with PaperPrincess in that I much prefer a triangle ruler without the tips cut off. Best Press is advertised as a starch alternative, not a starch. I've never used it, but I do use spray starch from the grocery store, or Walmart, when I need a stiffer fabric. I prewash FQ's and even scraps. The only things I do not prewash are jelly rolls, charm squares, etc. But that is a personal preference.